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tgatoppm - convert TrueVision Targa file into a portable pixmap
tgatoppm
[--alphaout={alpha-filename,-}] [--headerdump] tga-filename
Reads
a TrueVision Targa file as input. Produces a portable pixmap as output.
- --alphaout=alpha-filename
- tgatoppm creates a PGM (portable graymap)
file containing the alpha channel values in the input image. If the input
image doesn't contain an alpha channel, the alpha-filename file contains
all zero (transparent) alpha values. If you don't specify --alphaout, tgatoppm
does not generate an alpha file, and if the input image has an alpha channel,
tgatoppm simply discards it.
If you specify - as the filename, tgatoppm
writes the alpha output to Standard Output and discards the image.
See
pnmcomp(1)
for one way to use the alpha output file.
- --headerdump
- Causes
the header information to be dumped to stderr.
All options can be abbreviated
to their shortest unique prefix. Should really be in PNM, not PPM.
ppmtotga(1)
, pnmcomp(1)
, ppm(5)
Partially based on tga2rast,
version 1.0, by Ian J. MacPhedran.
Copyright (C) 1989 by Jef Poskanzer.
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